79314391 has 16 divisors (see below), whose sum is σ = 89278560. Its totient is φ = 69955200.

The previous prime is 79314353. The next prime is 79314407. The reversal of 79314391 is 19341397.

It is a cyclic number.

It is not a de Polignac number, because 79314391 - 2²³ = 70925783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79314391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79314311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37036 + ... + 39118.

It is an arithmetic number, because the mean of its divisors is an integer number (5579910).

Almost surely, 2^79314391 is an apocalyptic number.

79314391 is a deficient number, since it is larger than the sum of its proper divisors (9964169).

79314391 is a wasteful number, since it uses less digits than its factorization.

79314391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226.

The product of its digits is 20412, while the sum is 37.

The square root of 79314391 is about 8905.8627319311. The cubic root of 79314391 is about 429.6524882926.

The spelling of 79314391 in words is "seventy-nine million, three hundred fourteen thousand, three hundred ninety-one".